CN114434678B - Heat treatment device for removing smell of plastics - Google Patents
Heat treatment device for removing smell of plastics Download PDFInfo
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- CN114434678B CN114434678B CN202111642428.2A CN202111642428A CN114434678B CN 114434678 B CN114434678 B CN 114434678B CN 202111642428 A CN202111642428 A CN 202111642428A CN 114434678 B CN114434678 B CN 114434678B
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- tank body
- central tube
- heat treatment
- pipe
- treatment device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/021—Heat treatment of powders
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses a heat treatment device for removing smell of plastics, which comprises a tank body, a spiral guide plate, a central tube, a heater, a vacuumizing mechanism and a driving mechanism, wherein the tank body is provided with a plurality of spiral guide plates; a spiral material lifting channel is formed between the spiral material guide plate and the inner wall of the tank body; the beneficial effects of the utility model are as follows: the tank body is driven to rotate along the axis of the tank body through the driving mechanism, so that plastic particles in the tank body ascend in a spiral shape upwards along the material lifting channel, after the plastic particles reach the upper end of the material lifting channel, the plastic particles enter the upper end of the central pipe and enter the lower end of the material lifting channel from the lower end of the central pipe under the action of gravity, and then the plastic particles continuously ascend along the material lifting channel, and the circulation is repeated. Therefore, the device can realize the efficient deodorization of plastic particles and reduce the energy consumption.
Description
Technical Field
The utility model relates to the technical field of plastic processing, in particular to a heat treatment device for removing smell of plastic.
Background
Plastic, which is one of the most common materials in people's daily lives, has been used in all aspects of life. In which, for the applications in the fields of automotive interiors, partial packaging materials and the like, requirements for odor grades are put forward on plastic raw materials so as to reduce the harm of volatile gases of plastic products produced by the plastics to human bodies.
The smell of the plastic raw material is usually from VOC (volatile organic compound), and the volatilization of the smell substances in the plastic particles can be accelerated by heating the plastic raw material to a certain temperature, so that the volatilization of VOC gas is greatly reduced when the plastic raw material is produced and processed into plastic products, and the smell grade of the produced plastic products is reduced, thereby meeting the market demands.
However, the existing plastic particle heating deodorizing device (such as the Chinese patent application No. CN 201621453696.4) generally has the defects of high energy consumption, long heating period and incomplete deodorizing, and limits the wide use of the plastic heat treatment deodorizing process.
Disclosure of Invention
In view of the foregoing, it is necessary to provide a heat treatment device for deodorizing plastics, which is used for solving the technical problems of high energy consumption, long heating period and incomplete deodorizing of the existing plastic particle heating deodorizing device.
In order to achieve the above purpose, the utility model provides a heat treatment device for removing the odor of plastics, which comprises a tank body, a spiral guide plate, a central tube, a heater, a vacuumizing mechanism and a driving mechanism;
the tank body is obliquely arranged and is provided with a closed storage cavity for storing plastic particles;
the spiral material guide plate is fixed in the material storage cavity, and a spiral material lifting channel is formed between the spiral material guide plate and the inner wall of the tank body;
the central tube is coaxially fixed in the tank body, the lower end of the central tube is communicated with the lower end of the lifting channel, and the upper end of the central tube is communicated with the upper end of the lifting channel;
the heater is used for heating plastic particles in the storage cavity;
an inlet of the vacuumizing mechanism is communicated with the storage cavity;
the driving mechanism is connected with the tank body and is used for driving the tank body to rotate.
In some embodiments, the tank comprises a tank body, a lower end cover and an upper end cover, wherein the lower end of the tank body is detachably connected with the lower end cover, and the upper end of the tank body is detachably connected with the upper end cover.
In some embodiments, the lower end of the central tube is fixedly connected with the lower end cover, and a discharge chute is formed on the side wall of the lower end of the central tube.
In some embodiments, the upper end of the central tube is fixedly connected with the upper end cover, and a feeding groove is formed in the side wall of the upper end of the central tube.
In some embodiments, the heat treatment device for deodorizing plastics further comprises a feed hopper, the outlet of which communicates with the upper end of the central tube.
In some embodiments, the heat treatment device for deodorizing plastics further comprises a feeding pipe, wherein the upper end of the feeding pipe is communicated with the outlet of the feeding hopper, the lower end of the feeding pipe is communicated with the upper end of the central pipe, and the feeding pipe is rotatably connected with the central pipe.
In some embodiments, the heat treatment device for deodorizing plastic further comprises a discharging pipe and a discharging valve, wherein the upper end of the discharging pipe is communicated with the lower end of the central pipe, the discharging pipe is rotationally connected with the central pipe, and the discharging valve is arranged at the lower end of the discharging pipe.
In some embodiments, the drive mechanism comprises a first support frame, a second support frame, and a drive; the first support frame is fixedly connected with the discharging pipe; the second support frame is fixedly connected with the feeding pipe; the driving piece is connected with the tank body and used for driving the tank body to rotate.
In some embodiments, the driving mechanism further comprises a third supporting frame and a roller, wherein the roller is rotatably arranged on the third supporting frame, and the side wall of the roller is tangential to the side wall of the tank body.
In some embodiments, the heat treatment device for deodorizing plastics further comprises a gas concentration detection member for detecting the VOC gas concentration within the storage chamber.
Compared with the prior art, the technical scheme provided by the utility model has the beneficial effects that: when the vacuum tank is used, plastic particles are filled into the tank body, the tank body is driven to rotate along the axis of the vacuum tank body through the driving mechanism, so that the plastic particles in the tank body ascend upwards in a spiral shape along the material lifting channel, after the plastic particles reach the upper end of the material lifting channel, the plastic particles enter the upper end of the central tube and descend along the central tube under the action of gravity, enter the lower end of the material lifting channel from the lower end of the central tube and ascend along the material lifting channel continuously, and the vacuum tank body is circularly reciprocated in the process. Therefore, the device can realize the efficient deodorization of plastic particles and reduce the energy consumption.
Drawings
FIG. 1 is a schematic perspective view of a heat treatment apparatus for deodorizing plastics according to an embodiment of the present utility model;
fig. 2 is a schematic perspective view of the heat treatment apparatus for deodorizing plastic of fig. 1, with the front half of the can 1 omitted;
FIG. 3 is an enlarged view of a portion of area A of FIG. 2;
FIG. 4 is an enlarged partial view of region B of FIG. 2;
in the figure: 1-tank body, 11-tank body main part, 12-lower end cover, 13-upper end cover, 2-spiral stock guide, 3-center tube, 31-feed chute, 32-blown down tank, 4-heater, 5-actuating mechanism, 51-first support frame, 52-second support frame, 53-driving piece, 54-third support frame, 55-cylinder, 6-feeder hopper, 7-inlet pipe, 8-blown down pipe, 81-bleeder valve, 9-gas concentration detection spare.
Detailed Description
The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.
Referring to fig. 1 and 2, the present utility model provides a heat treatment device for deodorizing plastics, which comprises a tank 1, a spiral guide plate 2, a central tube 3, a heater 4, a vacuum pumping mechanism (not shown) and a driving mechanism 5.
The tank body 1 is arranged in an inclined manner and is provided with a closed storage cavity for storing plastic particles. The spiral guide plate 2 is fixed in the storage cavity, and a spiral material lifting channel is formed between the spiral guide plate 2 and the inner wall of the tank body 1. The central tube 3 is coaxially fixed in the tank body 1, the lower end of the central tube 3 is communicated with the lower end of the material lifting channel, and the upper end of the central tube 3 is communicated with the upper end of the material lifting channel.
The heater 4 is used for heating the plastic particles in the storage cavity. And an inlet of the vacuumizing mechanism is communicated with the storage cavity and is used for forming a negative pressure environment in the storage cavity. The driving mechanism 5 is connected with the tank body 1 and is used for driving the tank body 1 to rotate.
When the vacuum tank is used, plastic particles are filled into the tank body 1, the tank body 1 is driven to rotate along the axis of the vacuum tank body 1 by the driving mechanism 5, so that the plastic particles in the tank body 1 ascend upwards in a spiral shape along the material lifting channel, after the plastic particles reach the upper end of the material lifting channel, the plastic particles enter the upper end of the central tube 3 and descend along the central tube 3 under the action of gravity, enter the lower end of the material lifting channel from the lower end of the central tube 3 and then ascend along the material lifting channel continuously, the vacuum tank body is circularly reciprocated in the process, the heater 4 heats the plastic particles, the vacuum pumping mechanism enables the tank body 1 to form a negative pressure environment, and VOC gas is continuously released from the surface of the plastic particles, and the VOC gas is pumped and discharged through the vacuum pumping mechanism. Therefore, the device can realize the efficient deodorization of plastic particles and reduce the energy consumption.
In order to specifically implement the function of the can 1, referring to fig. 1 and 2, in a preferred embodiment, the can 1 includes a can body 11, a lower end cap 12, and an upper end cap 13, wherein the lower end of the can body 11 is detachably connected to the lower end cap 12, and the upper end of the can body 11 is detachably connected to the upper end cap 13.
In order to facilitate the plastic particles entering the upper end of the central tube 3, please refer to fig. 1-3, in a preferred embodiment, the upper end of the central tube 3 is fixedly connected to the upper end cap 13, and a feeding groove 31 is formed on the sidewall of the upper end of the central tube 3.
In order to facilitate the plastic particles to leave from the lower end of the central tube 3, please refer to fig. 1, 2 and 4, in a preferred embodiment, the lower end of the central tube 3 is fixedly connected to the lower end cap 12, and a discharge chute 32 is formed on the sidewall of the lower end of the central tube 3.
For the convenience of feeding, referring to fig. 1 and 2, in a preferred embodiment, the heat treatment apparatus for deodorizing plastics further comprises a feed hopper 6, and an outlet of the feed hopper 6 is in communication with an upper end of the central tube 3.
In order to specifically realize the communication between the outlet of the feeding hopper 6 and the upper end of the central tube 3, referring to fig. 2 and 3, in a preferred embodiment, the heat treatment apparatus for removing the odor of plastics further comprises a feeding tube 7, wherein the upper end of the feeding tube 7 is communicated with the outlet of the feeding hopper 6, the lower end of the feeding tube 7 is communicated with the upper end of the central tube 3, and the feeding tube 7 is rotatably connected with the central tube 3. When the novel plastic feeding device is used, plastic particles are poured into the feeding hopper 6, enter the feeding pipe 7 from the outlet of the feeding hopper 6, enter the central pipe 3 from the feeding pipe 7, and enter the tank body 1 from the discharge chute 32 of the central pipe 3.
In order to facilitate discharging, referring to fig. 1 and 2, in a preferred embodiment, the heat treatment device for removing the odor of plastics further comprises a discharging pipe 8 and a discharging valve 81, wherein the upper end of the discharging pipe 8 is communicated with the lower end of the central pipe 3, the discharging pipe 8 is rotationally connected with the central pipe 3, the discharging valve 81 is arranged at the lower end of the discharging pipe 8, the discharging valve 81 is in a closed state during the odor removal, and after the odor removal is completed, the discharging valve 81 is opened, and the plastic particles are discharged from the discharging pipe 8.
In order to implement the function of the driving mechanism 5, referring to fig. 1-3, in a preferred embodiment, the driving mechanism 5 includes a first supporting frame 51, a second supporting frame 52, and a driving member 53; the first supporting frame 51 is fixedly connected with the discharging pipe 8; the second supporting frame 52 is fixedly connected with the feeding pipe 7; the driving member 53 is connected to the can 1 and is used for driving the can 1 to rotate.
In order to improve the rotation stability of the can 1, referring to fig. 1 and 2, in a preferred embodiment, the driving mechanism 5 further includes a third supporting frame 54 and a roller 55, the roller 55 is rotatably disposed on the third supporting frame 54, and a side wall of the roller 55 is tangentially disposed with a side wall of the can 1.
In order to facilitate the detection of the deodorizing degree, referring to fig. 2 and 3, in a preferred embodiment, the heat treatment device for deodorizing plastics further includes a gas concentration detecting member 9, where the gas concentration detecting member 9 is used for detecting the VOC gas concentration in the storage chamber, so as to be used for judging the deodorizing effect.
For a better understanding of the present utility model, the operation of the heat treatment apparatus for deodorizing plastics according to the present utility model will be described in detail with reference to fig. 1 to 4: when the novel plastic feeding device is used, plastic particles are poured into the feeding hopper 6, enter the feeding pipe 7 from the outlet of the feeding hopper 6, enter the central pipe 3 from the feeding pipe 7, and enter the tank body 1 from the discharge chute 32 of the central pipe 3. The tank body 1 is driven to rotate along the axis of the tank body 1 by the driving mechanism 5, so that plastic particles in the tank body 1 ascend in a spiral shape upwards along the material lifting channel, after the plastic particles reach the upper end of the material lifting channel, the plastic particles enter the upper end of the central tube 3 and descend along the central tube 3 under the action of gravity, enter the lower end of the material lifting channel from the lower end of the central tube 3 and ascend along the material lifting channel continuously, and the process is repeated circularly, the heater 4 heats the plastic particles, the vacuumizing mechanism enables negative pressure environment to be formed in the tank body 1, VOC gas is continuously released from the surface of the plastic particles, the VOC gas is pumped and discharged through the vacuumizing mechanism, after the gas concentration detection part 9 detects that the odor removal is finished, the discharging valve 81 is opened, and the plastic particles are discharged from the discharging tube 8. Therefore, the device can realize the efficient deodorization of plastic particles and reduce the energy consumption.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. The heat treatment device for removing the smell of the plastic is characterized by comprising a tank body, a spiral guide plate, a central tube, a heater, a vacuumizing mechanism and a driving mechanism;
the tank body is obliquely arranged and is provided with a closed storage cavity for storing plastic particles;
the spiral material guide plate is fixed in the material storage cavity, and a spiral material lifting channel is formed between the spiral material guide plate and the inner wall of the tank body;
the central tube is coaxially fixed in the tank body, the lower end of the central tube is communicated with the lower end of the lifting channel, and the upper end of the central tube is communicated with the upper end of the lifting channel;
the heater is used for heating plastic particles in the storage cavity;
an inlet of the vacuumizing mechanism is communicated with the storage cavity;
the driving mechanism is connected with the tank body and is used for driving the tank body to rotate;
the tank body comprises a tank body main body, a lower end cover and an upper end cover, wherein the lower end of the tank body main body is detachably connected with the lower end cover, and the upper end of the tank body main body is detachably connected with the upper end cover;
the lower end of the central tube is fixedly connected with the lower end cover, and a discharge chute is formed in the side wall of the lower end of the central tube;
the upper end of the central tube is fixedly connected with the upper end cover, and a feed chute is formed in the side wall of the upper end of the central tube.
2. The heat treatment device for deodorizing plastics according to claim 1, further comprising a feed hopper, an outlet of which communicates with an upper end of the central tube.
3. The heat treatment device for deodorizing plastic according to claim 2, further comprising a feeding pipe, an upper end of which is communicated with an outlet of the feeding hopper, a lower end of which is communicated with an upper end of the central pipe, and the feeding pipe is rotatably connected with the central pipe.
4. A heat treatment device for deodorizing plastics according to claim 3, further comprising a discharge pipe and a discharge valve, wherein the upper end of the discharge pipe is communicated with the lower end of the center pipe, the discharge pipe is rotatably connected with the center pipe, and the discharge valve is provided at the lower end of the discharge pipe.
5. The heat treatment device for deodorizing plastic according to claim 4, wherein the driving mechanism comprises a first supporting frame, a second supporting frame and a driving member;
the first support frame is fixedly connected with the discharging pipe;
the second support frame is fixedly connected with the feeding pipe;
the driving piece is connected with the tank body and used for driving the tank body to rotate.
6. The heat treatment device for deodorizing plastic according to claim 5, wherein the driving mechanism further comprises a third supporting frame and a drum, the drum is rotatably arranged on the third supporting frame, and the side wall of the drum is tangential to the side wall of the tank.
7. The heat treatment device for deodorizing plastics according to claim 1, further comprising a gas concentration detecting member for detecting the VOC gas concentration in the storage chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111642428.2A CN114434678B (en) | 2021-12-29 | 2021-12-29 | Heat treatment device for removing smell of plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111642428.2A CN114434678B (en) | 2021-12-29 | 2021-12-29 | Heat treatment device for removing smell of plastics |
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| Publication Number | Publication Date |
|---|---|
| CN114434678A CN114434678A (en) | 2022-05-06 |
| CN114434678B true CN114434678B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111642428.2A Active CN114434678B (en) | 2021-12-29 | 2021-12-29 | Heat treatment device for removing smell of plastics |
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| CN (1) | CN114434678B (en) |
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| CN206870187U (en) * | 2017-07-10 | 2018-01-12 | 象山益精高分子材料有限公司 | Plastic grain cools down odor removal |
| CN108145881A (en) * | 2017-12-23 | 2018-06-12 | 郑州默尔电子信息技术有限公司 | Plastic grain vertical drying dehumidification equipment |
| CN108481600A (en) * | 2018-02-08 | 2018-09-04 | 海宁市鑫航塑料制品有限公司 | A kind of plastic granulator |
| CN110561646A (en) * | 2019-09-27 | 2019-12-13 | 张枫 | High-efficient plastics VOC remove device |
| CN209971203U (en) * | 2019-05-14 | 2020-01-21 | 广州仕天材料科技有限公司 | Plastic particle VOC processing apparatus |
| CN214056399U (en) * | 2020-11-11 | 2021-08-27 | 湖北嘉鑫环保新材料科技有限公司 | Biodegradable plastic bag production melts device with plastic granules |
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2021
- 2021-12-29 CN CN202111642428.2A patent/CN114434678B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081667A (en) * | 1994-06-23 | 1996-01-09 | Kobe Steel Ltd | Method and apparatus for heating mixture of powdery/ granular thermoplastic resin and reinforcing fiber and method for molding the same |
| US6099659A (en) * | 1998-08-19 | 2000-08-08 | Plastics Forming Enterprises, Inc. | Quality control system for monitoring and control of contaminants in recycled plastics |
| DE10225075A1 (en) * | 2002-02-07 | 2003-11-20 | Ohl Appbau & Verfahrenstechnik | Continuous post-condensation of plastic granules to increase viscosity involves continuous agitation of heated granules under vacuum during passage of a reactor |
| CN206357479U (en) * | 2016-12-28 | 2017-07-28 | 浙江佳华精化股份有限公司 | A kind of plastic grain taste removal system |
| CN206870187U (en) * | 2017-07-10 | 2018-01-12 | 象山益精高分子材料有限公司 | Plastic grain cools down odor removal |
| CN108145881A (en) * | 2017-12-23 | 2018-06-12 | 郑州默尔电子信息技术有限公司 | Plastic grain vertical drying dehumidification equipment |
| CN108481600A (en) * | 2018-02-08 | 2018-09-04 | 海宁市鑫航塑料制品有限公司 | A kind of plastic granulator |
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| CN114434678A (en) | 2022-05-06 |
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